Concentration of Dissolved Ozone available in the wash water
Proper Chemistry in the wash wheel
Correct Temperature of the wash water
Gaseous ozone is completely ineffective when used to wash linen. Any ozone that contributes to the cleaning and sanitizing of your linen must be dissolved in the water. This means simply getting bubbles of ozone into the water line and into your washers WILL NOT improve the quality of your finished product and WILL NOT reduce your use of hot water and chemicals. It WILL greatly increase the chances of worker exposure to ozone gas which is highly regulated and not advised. It WILL greatly increase the chances of corrosion to your expensive laundry equipment. Gaseous phase ozone is highly corrosive and liquid phase ozone is not corrosive.
Dissolved ozone, also known as ‘active’ ozone in this context, is the primary ingredient needed to make the whole thing work. You hear all types of claims about how much ozone companies can get into the washers but you don’t hear any details about what phase it’s in when it gets there. Ozone has a gaseous phase and a liquid phase. You wash linen in a liquid and not a gas so ozone must be in the liquid phase (dissolved in water) if it is going to be of any value in cleaning your linens. Many companies proclaim to have an effective ozone laundry system but their equipment most likely will not be able to supply any more than a tiny amount of dissolved ozone in your washers. Most systems dissolve only enough ozone into the water to have a slight softening effect on the water. This softening effect provides a boost to detergent effectiveness so this is what they claim as success with ozone laundry. The chlorine in the tap water instantly neutralizes most of the ozone these other companies are able to get dissolved into the water. A simple dissolved ozone test kit and a small amount of water taken from the washer will expose the impotence of just about every other ozone laundry system in the World! Don’t be fooled or otherwise misled. Insist on the very best for your laundry – Water Energy Ozone Laundry Systems.
Proper chemistry in the wash wheel is critical to success! Ozone is a precursor to a very powerful oxidant and if you get your chemistry right, you will produce impressive results! Ozone, when used correctly, will replace the alkali, acid, chlorine bleach and softener you currently use with a super-clean, super-green form of oxygen. In traditional laundry, the objective of the chemistry is to create OH molecules, or Hydroxyl Radicals, which do all of the major cleaning work. To do this you must use caustic chemicals and neutralizers that produce toxic by-products that must go down the drain and back into our rivers and streams. These chemicals also leave a residual in your linen that, over time, serves to dull the appearance and wear-out your valuable linen. When you switch over to ozone, this residual will be removed after 5 to 10 cycles through the new wash process. The truly clean linen looks and feels great, smells fantastic and will last far longer. Chlorine, traditionally used to bleach stains and sanitize linen, neutralizes ozone upon contact. Therefore, you CANNOT add any Chlorine bleach to the wash or you will destroy the ozone you worked so hard to get there. There is always chlorine present in tap water. Therefore, an effective ozone system must put enough dissolved ozone in the water to compensate for the ozone consumed by that chlorine and still have plenty of active ozone available to clean your linen.
If your ozone system is working correctly, you will only need a small amount of detergent to get a spectacular finished product. That’s it! All the other chemicals will be replaced by clean, green ozone!
Low Water Temperature is also extremely important to make ozone work properly. Ozone gas will not dissolve into water that is above 95-degrees Fahrenheit. It is a matter of physics. Therefore, if you use any hot water when using ozone, you are defeating your purpose. The colder water is, the better ozone will dissolve in it and stay dissolved in it. It may seem counter-intuitive to only use cold water to clean your linen but that is what you must do if you want ozone to work properly. Ozone is a short-lived and fragile molecule and heat is one of ozone’s worst enemies. Therefore, it would be best if you eliminated all sources of heat that may add to the temperature of the wash water.
Laundries in Houston, New Orleans and South Florida typically have cold water temperatures in the low to mid-80’s. This temperature works just fine. Laundries farther north with colder and even much colder water will see incredible results when ozone is applied properly to their operations.